<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>列表过滤</title>
    <script src="../../js/vue.js"></script>
</head>

<body>
<div id="root">
<!--    通过计算属性实现数组过滤,将需要过滤的元素通过计算后返回-->
    <h2>人员列表</h2>
    <input type="text" placeholder="请输入名字" v-model="keyWord">
    <ul>
        <li v-for="(p,index) of filPersons" :key="index">
            {{p.name}}-{{p.age}}-{{p.sex}}
        </li>
    </ul>
</div>
<script>
    const vm=new Vue({
        el:'#root',
        data:{
            keyWord:'',
            persons:[
                {id:'001',name:'马冬梅',age:19,sex:'女'},
                {id:'002',name:'周冬雨',age:20,sex:'女'},
                {id:'003',name:'周杰伦',age:21,sex:'男'},
                {id:'004',name:'温兆伦',age:22,sex:'男'}
            ]
        },
        computed:{
            filPersons(){
                return this.persons.filter((p)=>{
                    return p.name.indexOf(this.keyWord)!==-1
                })
            }
        }
    })
    /**
     * 列表的过滤是通过计算属性中使用数组的filter方法进行过滤.过滤完之后在进行渲染
     */
</script>
</body>
</html>